Derrick swinging and controlling device.



No. 715,99I. V P'atentd necLfl fi, 1902-.

. H. N. GOVE'LL & c. A. BAEC-HTOLD.

DERRICK SWINGING AND CONTROLLING DEVICE.

' (Application filed my. 23, 1900. (No Model.) 3 Sheets-Sheet l.

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mi. 715,99l.

I H. N. CUVELL &.- C. A. BAECHTOLD.

DEBRIBK SWINGI NG AND CONTROLLING DEVICE. (Ap pfluhon and am. as. 1000.)

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Patented Dec. I6, 1902.

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H. N. COVELLYGL C. A. BAEGHTOLD. DERRICK SWINGING AND CONTROLLINGDEVICE. (Apphcstlon filed In 28, 1900 (No Model.)

6 yrlwapm UNTTE STATES OF NEW YORK.

To all whom it may concern.- Be it known that We, HARRY N. COVELL, of hecity of New York, borough of Brooklyn, I n the county of Kings and Stateof New York, .-and CHARLES A. BAECHTOLD, of Westfield, 1n the county ofUnion and State of New Jer- ;sey, citizens of the United States, haveinvented a new and Improved Derrick Swingng and Controlling Device, ofwhich the folowing is a full, clear, and exact description. Ourinvention relates to an improvement in evices for swinging andcontrolling derricks esigned to be built either as a part of an 1rdinary hoisting-engine or as a separate attachment to be applied to anyof the ordinary oisting-engines. f, The particular purpose of the deviceis to filandle two lines or the two ends of one line by two separatedrums, so as to control the winging of the derrick-boom either by meansf a bull-wheel or by attaching the lines diectly to the boom. Anotherpurpose, in adition to this, is to furnish a drum which may be used forany purpose desired, but which is herein described as used for tipping askip or bucket which is hoisted by the derrick. Our invention comprisesthe novel features hich are hereinafter described, and particu arlypointed out in the claims. Reference is to be had to the accompanyingdrawings, forming a part of this specification, in which similarcharacters of reference indiate corresponding parts in all the figures.

Figure 1 is a plan view of our device, showng its manner of connectionwith a hoistingngine, but no other parts of the hoisting- ,engine. Fig.2 is a longitudinal section through one of the drums and its frictiondriving device. Fig. 3 is a partial side eleation of one of the camdevices used for con- (trolling one of the drums. Fig. 4. is an endelevation of the mechanism shown in Fig. 1

ith the driving-gears omitted to avoid hidg other parts. Fig. 5 is aplan of a barge, howing our device mounted thereon. Fig. a sideelevation of our device shown in nnection with a derrick, and Fig. 7 isa PATENT OFFICE.

HARRY N. COVELL, OF BROOKLYN, NEW YORK, AND CHARLES A. BAECH- TOLD, OFWESTFIELD, NEW JERSEY, ASSIGNORS TO THE LIDGERWOOD MANUFACTURINGCOMPANY, OF NEWV YORK, N. Y., A CORPORATION DERRICK SWINGING ANDCONTROLLING DEVICE.

SPECIFICATION forming part of Letters Patent No. 715,991, dated December16, 1902. Application filed March 28, 1900. Serial No. 10,428. (Nomodel.)

diagram showing in plan another way of connecting our device to aderrick.

In using derricks for loading and unloading material it is verydesirable to have a power-controlled device for swinging the boom of aderrick to any point desired. The special object of our device is toaccomplish this result, although it will be evident that it maybe usedfor many other purposes than this one special purpose. It is oftendesired, also, that a device of this sort shall be capable of attachmentto a hoisting-engine of any particular make, and our device, as shown inFigs. 1 and 4, is designed to be thus attached to a hoisting-engine. Itis evident, however, that a device essentially the same as that shown inthese figures might be constructed as an integral part of the engine.Our device is herein shown as mounted upon a frame A, wtihin whichsuitable bearings are provided for a shaft B, this shaft being providedwith a gear-wheel b, secured thereto and adapted to mesh with a pinionI), mounted upon a shaft B of the hoisting-engine. The manner ofconnecting the shaft 13 with the hoisting-engine may be anything foundsuitable, the method shown in Fig. 1 being given as a convenient methodfor most constructions. The shaft B of the hoisting-engine may be anyconvenient shaft, but would ordinarily be the shaft of the forward orlower drum. A portion A of the frame of the hoisting-engine is shown inFig. 1. The shaft B is thus given a constant rotation in one direction.Upon this shaft are mounted two drums D and D to turn freely thereon.One of these drums and a portion of its friction device is shown insection in Fig. 2. Secured to the shaft 13 is a disk E, said disk beinglocated between the two drums and carrying one-half of thefriction-plates e, the other half being carried upon the drums. Thefriction herein shown is the ordinary plate friction. Any form offriction device which is found practicable may be substituted therefor.The drums D and D are each provided with a flange D adapted to receive aband-brake I, by means of which the drums may be secured againstrotation. These band-brakes are connected with arms I, secured to ashaft 1 which is mounted in suitable bearings and extends across thedirection of the hoisting-engine to a convenient point for operation bythe attendant. To this shaft is secured a lever 1 which is provided withany suitable detent or catch device adapted to engage a segmentbar I, sothat the brakes maybe held in tension when desired.

A cam device is shown as provided for each of the drums, by means ofwhich they may be engaged with the friction device E, so as to turn withthe shaft B. This cam device is such as is shown in our application forpatent, Serial No. 718,385, filed May 26, 189$). This consists of twocam members F and G, both being mounted upon the shaft B at one end ofthe drum. The member F is held against rotation, the means herein usedfor that purpose consisting of the two lugs F and the pin F which issecured to the frame A. The member G is provided with an arm G, by meansof which it may be oscillated upon the shaft. The two members areprovided with face-cams f, adapted to engage each other, so that whenthe member G is turned in one direction it will engage the end of thedrum and force it toward the friction device 6. Both members F and G areprovided with thrust-bearing surfaces g, located outside of the cams f,by means of which a minimum amount of pressure may be secured andmaintained at all times, even when the member G is turned backward so asto free the cams f. An adjustable thrust-bearing for the member F isprovided by threading the shaft B and placing thereon a split nut H, thetwo halves of which are held together by means of bolts 71. These boltsmay be loosened, so that the nut is readily turnable upon the shaft, inwhich condition the nut may be adjusted so as to obtain the desiredminimum pressure upon the friction device E. hen this point is secured,the bolts it may be tightened so as to clamp the nut securely upon theshaft.

In Fig. i it will be noticed that the arms G of the friction device forthe respective drums D and D extend upon opposite sides of the shaft,one upwardly and the other backwardly. These arms are connected by meansof links J and J with arms K, secured to a transversely-enter]ding shaftK. By rocking this shaft in one direction one of the cam devices isoperated to throw its drum toward its friction device, so as to causethat drum to be turned by the shaft B. The other friction device is sodesigned that movement of the shaft in this direction will separate thecam-surfacesfand its friction device will not be operated. The twofriction devices are thus adjusted to operate oppositelythat is, whenone is applied the other is freed.

Upon a continuation of the shaft B, herein shown as upon the other sideof the gear-wheel b, is placed a third drum D which in its con structionand method of operation is substantially the same as that just describedfor the drums D and D. The friction device in this case is connecteddirectly with the wheel I) I and the drum, the wheel 1) taking the placeof the disk E in the other device. This friction device is locatedwithin the flange E, Y which is secured to the side of the wheel The camdevice G, by which the friction is applied, is operated by means of alink L which connects at one end with the end of the arm G and at itsother end with an arm L, which is secured to a sleeve L, herein shown asmounted upon the shaft 1 but not secured thereto. This sleeve isoscillated by means of a lever L which works upon a seg ment-bar L Thislever is not visible in Fig. 4, as it is directly behind the lever Ishown therein. 5 In Fig. 5 our device is shown as mounted in the frameof the hoisting-engine,being thus an integral part of thehoisting-engine. In} this same figure the manner of connecting thedevice with a derrick upon a scow is shown. The mast of the derrick isshown at M and the boom at M. The ropes P, leading from th two drums,are shown as passing first througLF snatch-blocks or over guide-pulleysP located at the bottom of the mast. They theri. pass throughsnatch-blocks P and P at opiposite sides of the boom, and thence to aconnection with the outer end of the boom. In this figure one of thesnatch-blocks, P, is shown as secured to one side of the scow, while theother, P is shown as secured to a dock or other vessel alongside whichthe scow is placed, so that the boom may be swung in, one direction asufficient distance to enable it to take or deliver goods at a pointoutside v of the scow. Both of the snatch-blocks may, if desired, besecured to the scow or removed to a point outside of the scow,dependinglsr-ro In Fig. 6 the manner of using the third-:3 k. I

drum is illustrated, although by reason of the position of the partsthis drum cannot be dif? ferentiated from the other drums of ourauxiliary device.

In Fig. 6 a manner of utilizing our device i in connection with ahoisting-engine to dump a skip is shown. The third drum D (showngy-z. inFig. 1) might be used for such purpose or? any other in which a thirdline is used. I 7125 this case a rope O is led from said drum overguide-pulleys 0, located at the foot and up: per end of the mast and onthe outer end of, the boom. The rope O is then connected with one sideof the skip 8. When it is desiretx .130 to dump this skip, this may beaccomplished I by applying the friction driving device to the drum D soas to wind upon it the rope O. This will raise the rear end of the skipand dump its contents. When this has been done, the friction drivingdevice may be freed from the drum D and the skip be allowedto return toits ordinary position. In Fig. 7 the manner of using ourdevice inconnection with a bull-wheel placed on the bottom of the derrick isshown. The rope P leading from the two drums passes about guide-pulleyspand thence about the bullwheel N, which is secured to the bottom of thederrick-mast M. In this case a single rope is used, the two ends thereofbeing wound upon the two drums D and D. In this figure the gear-wheel bis shown as combined with the disk E, between the two drums D and D. Theexact location of this gear-wheel is immaterial. With this device it ispossible to effectively control the operation of the derrick, so as todeposit the load' at any point desired. In the construction shown inFigs. 1 and 2 the device is adapted to be attached to a hoisting-engineof any make.

The brakes which are applied to the drums D and D are both operated bythe shaft 1 in a similar mannerthat is, both are applied or released atthe same time. By using the brakes in this manner it is possible toapply resistance to the rope P, by which the derrick-boom is swung, sothat it may be held against swinging even if the derrick is mounted upona scow or other floating vessel which is rocked by the waves.

By the use of the cam device such as shown in Fig. 2 and described inour application before referred to a certain amount of friction is atalltimes applied to the drums D and D, this friction being in amount justsuficient to hold the rope wound thereon taut, so that as soon as thebrakes are applied the boom is prevented from swinging in eitherdirection. If the rope had any slack, it would permit a limited amountof swing to the boom even after the brakes were applied. By maintaininga limited amount of friction upon the drums at all times. this isprevented.

Having thus fully described our invention, we claim as new and desire tosecure by Letters Patent 1. An auxiliary attachment for hoistingenginescomprising a frame, a shaft journaled in said frame, means forrotatively connecting said shaft with a shaft of the hoistingengine, twodrums mounted loosely upon said shaft, friction driving devices adaptedto connect the drums and shaft, a common controlling member for thefriction driving devices of both drums adapted to operate themoppositely, brakes adapted to engage and hold each its respective drum,and a controlling member for said brakes and adapted to apply andrelease said brakes alike for both drums.

2. .An auxiliary attachment for hoistingengines,comprisiugaframehavingtwo drums loosely mounted therein, friction driving devices for saiddrums, rotative connections from said devices to a shaft of thehoistingengine, a friction controlling device adapted to apply aconstant minimum pressure and a common device for increasing pressureoppositely connected with said friction controlling devices.

An auxiliary attachment for hoistingengines comprising a frame, a shaftjournaled in said frame, means for rotatively connecting said shaft witha shaft of the hoistingengine, two drums mounted loosely upon saidshaft, friction driving devices adapted to connect the drums and shaft,brakes adapted to engage and hold each its respective drum,

' two controlling-shafts extending parallel with the drum-shaft, andconnections from one of said controlling-shafts to both brakes adaptedto operate them similarly and connections from the other to bothfriction driving devices adapted to apply and release them oppositelyfor opposite drums.

4. A derrick-swinging device, comprising a shaft having a rotative powerconnection thereto, two drums loosely mounted upon said shaft, a disksecured to said shaft between the drums, said drums and disk beingadapted to have frictional engagement, friction applying devices actingupon the drums to engage them with said disk, a controllingshaftextending substantially parallel with the drum-shaft, and connectionsfrom said controlling-shaft to the friction driving devices of bothdrums to operate them oppositely.

5. A derrick-swinging device, comprising a shaft having a rotative powerconnection thereto, two drums loosely mounted upon said shaft, a disksecured to said shaft between the drums, said drums and disk beingadapted to have frictional engagement, friction applying devices actingupon the drums to engage them with said disk, drum-shifting meanslocated at the end of the drums opposite said friction, and a commonactuating mechanism for said shifting means adapted to engage the drumswith and release them from their frictions oppositely.

6. In an auxiliary attachment for hoistingengines, the combination of aframe, a shaft journaled therein, means for rotatively connecting saidshaft with the hoisting-engine,

two drums loosely mounted upon the shaft, a.

disk secured to the shaft between the drums and adapted to befrictionally connected with the drums, collars adjustably secured to theshaft outside of the drums, two cam members upon the shaft between eachof said collars and the adjacent drum, means for holding one of said cammembers against turning and controlling means connected with the othercam members to actuate them oppositely.

ICC

IIO

7. In a, hoisting device in combination, two names to this specificationin the presence of coaxial drums, friction driving devices for twosubscribing witnesses. both drums, means for applying and releasing saidfriction driving devices oppositely l 5 for opposite drums, and meansfor Inainmining aconstant minim um driving friction upon said drums.

In testimony whereof We have signed our Witnesses:

CHARLES G. MUNIER, JAMES E. DALTON.

